集中空调水系统变流量高效运行控制策略研究
High efficiency operation control strategy of variable volume water system in central air conditioning systems
摘要：
分析了冷水机组、冷水泵、冷却水泵等的变流量运行性能特点和空调末端水力平衡控制，提出了集中空调水系统全年高效变流量运行的控制策略。指出空调末端可通过动态压差+比例积分电动一体平衡阀控制、电动两通阀温差控制和基于数据分析的等比例两通阀精准控制实现变水量、节能高效运行。
Abstract：
Analyses the variable volume operation characteristics of chillers, chilled water pumps and cooling water pumps, and the hydraulic balance control of air conditioning terminals. Proposes a control strategy to operate the variable volume water system of central air conditioning systems in a high efficiency way in the whole year. Points out that the air conditioning terminals can realize variable volume and high efficiency operation by adopting dynamic pressure difference plus proportional integral electric integrated balancing valve control, electric two-way valve temperature difference control and proportional two-way valve precise control based on data analysis.
Keywords:central air conditioning, water system, variable volume, control strategy, high efficiency operation